...forwarded for your information, Martin -------- Original Message -------- Subject: Photonics seminar by Kevin Eliciri from LOCI Date: Wed, 22 May 2013 12:20:15 +0100 From: Dunsby, Christopher W <christopher.dunsby@imperial.ac.uk> To: Magee, Tony <t.magee@imperial.ac.uk>, Spitaler, Martin <m.spitaler@imperial.ac.uk> Dear Tony, Martin, We have Kevin Eliceri speaking at our Photonics Group Seminar in room 630 Blackett on the 4^th June from 1315-1415, who is from the Laboratory for Optical and Computational Instrumentation (LOCI) at the University of Wisconsin. FILM users may be interested in his talk. http://loci.wisc.edu/people/kevin-eliceiri http://www3.imperial.ac.uk/newsandeventspggrp/imperialcollege/naturalscience... I will send you the title and abstract as soon as I have it. This talk will be preceded by one from Steve Jaques, see attached poster in Lecture Theatre 2 Blackett at 12pm, which may also be of interest. best regards, Chris --------------------- Chris Dunsby 020 7594 7755 ------------------------------------------------------------------------ Optically probing the nanoarchitecture of cells and tissues Prof. Steven Jacques, Oregon Health & Science University, Portland, USA Tuesday June 4th, Lecture Theatre 2, Blackett Tea, coffee and biscuits from 11:45, seminar from 12pm Abstract Optical measurements are sensitive to structures on the size scale of a wavelength of light. Hence, cellular and extra-cellular structures with sizes in the range of 200-2000 um dominate optical measurements of biological tissues. The contribution from very small structures (<200 um) is still detectable, however, as apparent "Rayleigh scattering" which is significant in tissues with collagen. Two measurements are able to discern the size distribution: (1) Confocal reflectance measurements as the depth position (z) of the focus is scanned down into the tissue, ( ) . (2) Wavelength dependence of diffuse light reflectance. Such measurements offer an opportunity to assess and monitor the nanoarchitecture and microarchitecture of skin and other tissues. Detecting the effects of pathology, actinic damage, and pharmaceuticals on the skin are potential applications of these non-invasive optical methods. About Prof. Jacques Steven Jacques has held appointments at the Wellman Center for Photomedicine and Massachusetts General Hospital, Harvard Medical School and University of Texas. He is currently Professor of Dermatology and Biomedical Engineering at Oregon Health & Science University in Portland, Oregon. His work continues on developing novel uses of optical technologies for both therapy and diagnosis. He developed a hand-held polarized light camera to visualize skin cancer margins and guide surgical excision, tested in clinical trials and licensed to a company. Professor Jacques currently works on bridging between the possibilities afforded by optical technologies and the needs of molecular and cellular biology. In particular, he is developing novel microscopes that are sensitive to the ultrastructure of cells and tissues. LUNCHTIME SEMINAR SERIES